{"product_id":"tx433-fpc-2906-433mhz-fpc-internal-antenna-2-0-dbi-vswr-1-5","title":"10PCS Cdsenet TX433-FPC-2906 433MHz FPC Internal Antenna 2.0 dBi VSWR≤1.5","description":"\u003cdiv style=\"font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif; color: #333; line-height: 1.6; max-width: 1000px; margin: 0 auto; padding: 10px;\"\u003e\n\u003csection style=\"margin-bottom: 40px;\"\u003e\n\u003ch2 style=\"font-size: 24px; color: #111; border-bottom: 2px solid #eee; padding-bottom: 10px; margin-bottom: 20px;\"\u003eProduct Overview\u003c\/h2\u003e\n\n\u003cp style=\"font-size: 16px; color: #444; margin-bottom: 20px;\"\u003eThe \u003cstrong\u003eTX433-FPC-2906\u003c\/strong\u003e is a compact 433 MHz FPC (Flexible Printed Circuit) internal antenna engineered for space-constrained IoT wireless applications. With a measured peak gain of \u003cstrong\u003e2.0 dBi\u003c\/strong\u003e and VSWR ≤ 1.5 across 423–443 MHz, it delivers reliable sub-1GHz RF performance in a \u003cstrong\u003e29 × 6 mm\u003c\/strong\u003e footprint. The 90° flying 1.13 mm coaxial lead enables flexible routing inside plastic enclosures. Suitable for LoRa modules, smart home sensors, wireless meter reading, and industrial telemetry. \u003cem\u003eUpdated March 2026.\u003c\/em\u003e\u003c\/p\u003e\n\u003cdiv\u003e\u003cimg alt=\"TX433-FPC-2906 433MHz FPC internal antenna 29x6mm with 1.13mm flying lead for IoT wireless modules\" cke-id=\"img32\" loading=\"lazy\" referrerpolicy=\"no-referrer\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0702\/9918\/9350\/files\/TX433-FPC-2906.png?v=1774598236\" style=\"max-width:100%; border-radius:6px;\"\u003e\u003c\/div\u003e\u003c\/section\u003e\n\n\u003csection style=\"margin-bottom: 40px;\"\u003e\n\u003ch2 style=\"font-size: 22px; color: #111; margin-bottom: 15px;\"\u003eTechnical Specifications\u003c\/h2\u003e\n\n\u003cdiv style=\"overflow-x: auto;\"\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; font-size: 14px; text-align: left; border: 1px solid #ececec;\"\u003e\n\t\u003cthead\u003e\n\t\t\u003ctr style=\"background-color: #f9f9f9; border-bottom: 2px solid #eee;\"\u003e\n\t\t\t\u003cth style=\"padding: 12px; font-weight: bold; color: #333;\"\u003eParameter\u003c\/th\u003e\n\t\t\t\u003cth style=\"padding: 12px; font-weight: bold; color: #333;\"\u003eTechnical Value\u003c\/th\u003e\n\t\t\u003c\/tr\u003e\n\t\u003c\/thead\u003e\n\t\u003ctbody\u003e\n\t\t\u003ctr style=\"border-bottom: 1px solid #f0f0f0;\"\u003e\n\t\t\t\u003ctd style=\"padding: 12px; font-weight: 600;\"\u003eFrequency Range\u003c\/td\u003e\n\t\t\t\u003ctd style=\"padding: 12px;\"\u003e423 – 443 MHz (center: 433 MHz)\u003c\/td\u003e\n\t\t\u003c\/tr\u003e\n\t\t\u003ctr style=\"border-bottom: 1px solid #f0f0f0; background-color: #fafafa;\"\u003e\n\t\t\t\u003ctd style=\"padding: 12px; font-weight: 600;\"\u003ePeak Gain\u003c\/td\u003e\n\t\t\t\u003ctd style=\"padding: 12px;\"\u003e2.0 dBi\u003c\/td\u003e\n\t\t\u003c\/tr\u003e\n\t\t\u003ctr style=\"border-bottom: 1px solid #f0f0f0;\"\u003e\n\t\t\t\u003ctd style=\"padding: 12px; font-weight: 600;\"\u003eVSWR\u003c\/td\u003e\n\t\t\t\u003ctd style=\"padding: 12px; font-weight: bold; color: #e4393c;\"\u003e≤ 1.5 (verified by Agilent E5071C VNA)\u003c\/td\u003e\n\t\t\u003c\/tr\u003e\n\t\t\u003ctr style=\"border-bottom: 1px solid #f0f0f0; background-color: #fafafa;\"\u003e\n\t\t\t\u003ctd style=\"padding: 12px; font-weight: 600;\"\u003eConnector \/ Interface\u003c\/td\u003e\n\t\t\t\u003ctd style=\"padding: 12px;\"\u003eWelding \/ IPEX (optional)\u003c\/td\u003e\n\t\t\u003c\/tr\u003e\n\t\t\u003ctr style=\"border-bottom: 1px solid #f0f0f0;\"\u003e\n\t\t\t\u003ctd style=\"padding: 12px; font-weight: 600;\"\u003eAntenna Material\u003c\/td\u003e\n\t\t\t\u003ctd style=\"padding: 12px;\"\u003eFPC (Flexible Printed Circuit)\u003c\/td\u003e\n\t\t\u003c\/tr\u003e\n\t\t\u003ctr style=\"border-bottom: 1px solid #f0f0f0; background-color: #fafafa;\"\u003e\n\t\t\t\u003ctd style=\"padding: 12px; font-weight: 600;\"\u003eDimensions\u003c\/td\u003e\n\t\t\t\u003ctd style=\"padding: 12px;\"\u003e29 mm × 6 mm\u003c\/td\u003e\n\t\t\u003c\/tr\u003e\n\t\t\u003ctr style=\"border-bottom: 1px solid #f0f0f0;\"\u003e\n\t\t\t\u003ctd style=\"padding: 12px; font-weight: 600;\"\u003eCable\u003c\/td\u003e\n\t\t\t\u003ctd style=\"padding: 12px;\"\u003e1.13 mm coaxial, 90° flying lead\u003c\/td\u003e\n\t\t\u003c\/tr\u003e\n\t\t\u003ctr style=\"border-bottom: 1px solid #f0f0f0; background-color: #fafafa;\"\u003e\n\t\t\t\u003ctd style=\"padding: 12px; font-weight: 600;\"\u003eImpedance\u003c\/td\u003e\n\t\t\t\u003ctd style=\"padding: 12px;\"\u003e50 Ω\u003c\/td\u003e\n\t\t\u003c\/tr\u003e\n\t\t\u003ctr style=\"border-bottom: 1px solid #f0f0f0;\"\u003e\n\t\t\t\u003ctd style=\"padding: 12px; font-weight: 600;\"\u003eCertification\u003c\/td\u003e\n\t\t\t\u003ctd style=\"padding: 12px;\"\u003eCE \/ RoHS compliant\u003c\/td\u003e\n\t\t\u003c\/tr\u003e\n\t\t\u003ctr style=\"border-bottom: 1px solid #f0f0f0; background-color: #fafafa;\"\u003e\n\t\t\t\u003ctd style=\"padding: 12px; font-weight: 600;\"\u003eUpdated\u003c\/td\u003e\n\t\t\t\u003ctd style=\"padding: 12px;\"\u003eMarch 2026\u003c\/td\u003e\n\t\t\u003c\/tr\u003e\n\t\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection style=\"margin-bottom: 40px;\"\u003e\n\u003ch2 style=\"font-size: 22px; color: #111; border-bottom: 2px solid #eee; padding-bottom: 10px; margin-bottom: 25px;\"\u003eProduct Details\u003c\/h2\u003e\n\n\u003cdiv style=\"background: #ffffff; border: 1px solid #eee; border-radius: 8px; padding: 20px; margin-bottom: 20px;\"\u003e\n\u003ch3 style=\"font-size: 18px; color: #111; margin: 0 0 10px 0;\"\u003eSelf-Adhesive FPC Patch — Clean Internal Integration\u003c\/h3\u003e\n\n\u003cp style=\"font-size: 14px; color: #666; margin-bottom: 15px;\"\u003eHigh-quality adhesive backing allows direct mounting inside plastic enclosures without drilling or external hardware. The FPC substrate conforms to curved surfaces, maintaining consistent 2.0 dBi gain even in tight housings. Ideal for sealed IoT devices where external antenna ports are not feasible.\u003c\/p\u003e\n\u003cdiv\u003e\u003cimg alt=\"TX433-FPC-2906 FPC antenna adhesive backing for internal mounting inside IoT device enclosure\" cke-id=\"img33\" loading=\"lazy\" referrerpolicy=\"no-referrer\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0702\/9918\/9350\/files\/TX433-FPC-2906-2.png?v=1774598236\" style=\"max-width:100%; border-radius:6px;\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv style=\"background: #ffffff; border: 1px solid #eee; border-radius: 8px; padding: 20px;\"\u003e\n\u003ch3 style=\"font-size: 18px; color: #111; margin: 0 0 10px 0;\"\u003e90° Flying 1.13 mm Lead — Flexible Routing, Reduced Stress\u003c\/h3\u003e\n\n\u003cp style=\"font-size: 14px; color: #666; margin-bottom: 15px;\"\u003eThe 90-degree angled coaxial lead minimizes bending radius requirements and reduces mechanical stress at the solder joint. Compatible with standard IPEX\/U.FL connectors (optional), enabling tool-free connection to common 433 MHz RF modules such as SX1278-based LoRa boards.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection style=\"margin-bottom: 40px;\"\u003e\n\u003ch2 style=\"font-size: 22px; color: #111; margin-bottom: 15px;\"\u003eProfessional Test Report\u003c\/h2\u003e\n\n\u003cdiv style=\"background-color: #f8fbff; border: 1px solid #e1ecf7; border-radius: 8px; padding: 20px; text-align: center;\"\u003e\n\u003cp style=\"font-size: 15px; color: #1e3a8a; margin-bottom: 15px;\"\u003eVSWR measured at \u003cstrong\u003e≤ 1.5\u003c\/strong\u003e across 423–443 MHz using an \u003cstrong\u003eAgilent E5071C\u003c\/strong\u003e Vector Network Analyzer. Return loss \u0026gt; 14 dB confirms efficient power transfer with minimal reflection.\u003c\/p\u003e\n\u003cdiv\u003e\u003cimg alt=\"TX433-FPC-2906 VSWR test chart 433MHz measured by Agilent E5071C VNA showing VSWR below 1.5\" cke-id=\"img34\" loading=\"lazy\" referrerpolicy=\"no-referrer\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0702\/9918\/9350\/files\/TX433-FPC-2906-3.png?v=1774598236\" style=\"max-width:100%; border-radius:6px;\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv style=\"background-color: #f8fbff; border: 1px solid #e1ecf7; border-radius: 8px; padding: 20px; text-align: center; margin-top: 16px;\"\u003e\u003cdiv\u003e\u003cimg alt=\"TX433-FPC-2906 antenna radiation pattern and gain measurement at 433MHz\" cke-id=\"img35\" loading=\"lazy\" referrerpolicy=\"no-referrer\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0702\/9918\/9350\/files\/TX433-FPC-2906-4.png?v=1774598236\" style=\"max-width:100%; border-radius:6px;\"\u003e\u003c\/div\u003e\u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection style=\"margin-bottom: 40px;\"\u003e\n\u003ch2 style=\"font-size: 22px; color: #111; margin-bottom: 25px;\"\u003eIdeal Applications\u003c\/h2\u003e\n\n\u003cdiv style=\"display: flex; flex-wrap: wrap; gap: 20px;\"\u003e\n\u003cdiv style=\"flex: 1 1 300px; min-width: 280px; border: 1px solid #f0f0f0; border-radius: 10px; padding: 15px; background: #fff;\"\u003e\n\u003ch3 style=\"font-size: 17px; margin: 0 0 8px 0; color: #0056b3;\"\u003eLoRa \u0026amp; Sub-1GHz Wireless Modules\u003c\/h3\u003e\n\n\u003cp style=\"font-size: 14px; color: #666; margin-bottom: 0;\"\u003eCompatible with SX1276\/SX1278-based LoRa modules and standard 433 MHz RF transceivers for long-range, low-power data transmission up to several kilometers in open environments.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv style=\"flex: 1 1 300px; min-width: 280px; border: 1px solid #f0f0f0; border-radius: 10px; padding: 15px; background: #fff;\"\u003e\n\u003ch3 style=\"font-size: 17px; margin: 0 0 8px 0; color: #0056b3;\"\u003eSmart Home \u0026amp; Security\u003c\/h3\u003e\n\n\u003cp style=\"font-size: 14px; color: #666; margin-bottom: 0;\"\u003eWireless door\/window sensors, remote controls, smart meter reading (AMR), and alarm systems operating on the 433 MHz ISM band.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv style=\"flex: 1 1 300px; min-width: 280px; border: 1px solid #f0f0f0; border-radius: 10px; padding: 15px; background: #fff;\"\u003e\n\u003ch3 style=\"font-size: 17px; margin: 0 0 8px 0; color: #0056b3;\"\u003eIndustrial Telemetry \u0026amp; SCADA\u003c\/h3\u003e\n\n\u003cp style=\"font-size: 14px; color: #666; margin-bottom: 0;\"\u003eRemote sensor nodes, pipeline monitoring, and industrial automation controllers requiring compact embedded antennas in sealed enclosures.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv style=\"flex: 1 1 300px; min-width: 280px; border: 1px solid #f0f0f0; border-radius: 10px; padding: 15px; background: #fff;\"\u003e\n\u003ch3 style=\"font-size: 17px; margin: 0 0 8px 0; color: #0056b3;\"\u003eAgriculture \u0026amp; Environmental Monitoring\u003c\/h3\u003e\n\n\u003cp style=\"font-size: 14px; color: #666; margin-bottom: 0;\"\u003eSoil moisture sensors, weather stations, and livestock tracking devices deployed in field conditions where a low-profile internal antenna is preferred.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection style=\"margin-bottom: 40px;\"\u003e\n\u003ch2 style=\"font-size: 22px; color: #111; border-bottom: 2px solid #eee; padding-bottom: 10px; margin-bottom: 25px;\"\u003eResources\u003c\/h2\u003e\n\u003ca href=\"http:\/\/www.cdebyte.com\/pdf-down.aspx?id=1255\" style=\"display: inline-block; padding: 12px 25px; background-color: #0056b3; color: #fff; text-decoration: none; border-radius: 6px; font-weight: 600; font-size: 15px;\" target=\"_blank\"\u003eDownload Datasheet (PDF)\u003c\/a\u003e\u003c\/section\u003e\n\n\u003csection style=\"border-top: 1px solid #eee; padding-top: 30px;\"\u003e\n\u003ch2 style=\"font-size: 20px; color: #111; margin-bottom: 20px;\"\u003eFAQ\u003c\/h2\u003e\n\n\u003cdiv style=\"margin-bottom: 20px;\"\u003e\n\u003cp style=\"font-weight: bold; margin-bottom: 5px;\"\u003eQ: Which RF modules is the TX433-FPC-2906 compatible with?\u003c\/p\u003e\n\n\u003cp style=\"color: #666; margin: 0; font-size: 14px;\"\u003eA: The TX433-FPC-2906 is compatible with any 433 MHz RF module with a 50 Ω impedance interface, including SX1276\/SX1278-based LoRa modules, CC1101, and Si4432 transceivers. The welding interface suits direct PCB integration, while the optional IPEX connector supports plug-and-play connection to modules with U.FL ports. Ensure the module's operating frequency falls within 423–443 MHz for optimal VSWR ≤ 1.5 performance.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv style=\"margin-bottom: 20px;\"\u003e\n\u003cp style=\"font-weight: bold; margin-bottom: 5px;\"\u003eQ: How should I install this antenna inside a device enclosure?\u003c\/p\u003e\n\n\u003cp style=\"color: #666; margin: 0; font-size: 14px;\"\u003eA: Clean the mounting surface with isopropyl alcohol and allow it to dry. Peel the adhesive backing and press the FPC antenna firmly onto a non-metallic (plastic or PCB) surface, keeping it at least 5 mm away from metal components or ground planes to avoid detuning. Route the 1.13 mm flying lead to the module connector without sharp bends (minimum bend radius: 5 mm). Avoid placing the antenna directly behind metal shielding cans.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv style=\"margin-bottom: 20px;\"\u003e\n\u003cp style=\"font-weight: bold; margin-bottom: 5px;\"\u003eQ: What are the environmental and durability ratings?\u003c\/p\u003e\n\n\u003cp style=\"color: #666; margin: 0; font-size: 14px;\"\u003eA: The TX433-FPC-2906 is an internal antenna intended for use within a sealed device enclosure. The FPC substrate operates reliably across a temperature range of -40°C to +85°C, suitable for industrial and outdoor IoT deployments when housed in an IP-rated enclosure. The product is RoHS compliant, ensuring it is free from hazardous substances including lead, mercury, and cadmium.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv style=\"margin-bottom: 20px;\"\u003e\n\u003cp style=\"font-weight: bold; margin-bottom: 5px;\"\u003eQ: What is the maximum transmit power this antenna supports?\u003c\/p\u003e\n\n\u003cp style=\"color: #666; margin: 0; font-size: 14px;\"\u003eA: The TX433-FPC-2906 is rated for use with standard low-power wireless modules, supporting input power up to 5 W (37 dBm). For typical LoRa and 433 MHz ISM band applications, transmit power is usually 10–100 mW (10–20 dBm), well within the antenna's operating range. Exceeding the rated power may damage the FPC substrate or degrade VSWR performance.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv\u003e\n\u003cp style=\"font-weight: bold; margin-bottom: 5px;\"\u003eQ: Is the TX433-FPC-2906 CE and RoHS certified?\u003c\/p\u003e\n\n\u003cp style=\"color: #666; margin: 0; font-size: 14px;\"\u003eA: Yes. The TX433-FPC-2906 is CE marked and RoHS compliant, meeting European Union electromagnetic compatibility (EMC) and hazardous substance directives. This makes it suitable for integration into end products targeting EU markets. Download the full datasheet above for certification documentation details.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c\/div\u003e\n","brand":"cdsenet","offers":[{"title":"Default Title","offer_id":45204538392678,"sku":"10*TX433-FPC-2906","price":3.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0702\/9918\/9350\/files\/TX433-FPC-2906-_2_800x800_v2.jpg?v=1773473923","url":"https:\/\/cdsenet.store\/products\/tx433-fpc-2906-433mhz-fpc-internal-antenna-2-0-dbi-vswr-1-5","provider":"CDSENET, Built for the Wireless World","version":"1.0","type":"link"}